EP 1985869 B1 20130327 - HYDRAULICALLY DRIVEN INDUSTRIAL MACHINE
Title (en)
HYDRAULICALLY DRIVEN INDUSTRIAL MACHINE
Title (de)
HYDRAULISCH ANGETRIEBENE INDUSTRIEMASCHINE
Title (fr)
MACHINE INDUSTRIELLE MUE HYDRAULIQUEMENT
Publication
Application
Priority
- JP 2007051967 W 20070206
- JP 2006030749 A 20060208
Abstract (en)
[origin: EP1985869A1] A hydraulically driven industrial machine having a variable displacement type hydraulic pump adapted to take in and pressurized working oil from an working oil tank, a hydraulic actuator to be driven by pressurized working oil delivered from the hydraulic pump through a control valve to perform a predetermined job, a variable return oil cooling means capable of cooling return oil from the hydraulic actuator at a varying cooling rate, an operational load detection means adapted to detect an operational load factor of the hydraulic actuator, and a control means adapted to vary the return oil cooling rate on the basis of an operational load factor detected by the operational load detection means.
IPC 8 full level
E02F 9/22 (2006.01); F15B 21/0423 (2019.01); F15B 21/08 (2006.01)
CPC (source: EP KR US)
E02F 9/22 (2013.01 - KR); E02F 9/226 (2013.01 - EP US); E02F 9/2296 (2013.01 - EP US); F01P 5/04 (2013.01 - KR); F15B 21/04 (2013.01 - KR); F15B 21/0423 (2018.12 - EP US); F15B 21/08 (2013.01 - EP US); F15B 2211/20546 (2013.01 - EP US); F15B 2211/327 (2013.01 - EP US); F15B 2211/62 (2013.01 - EP US); F15B 2211/6313 (2013.01 - EP US); F15B 2211/6343 (2013.01 - EP US); F15B 2211/7053 (2013.01 - EP US); F15B 2211/7058 (2013.01 - EP US); Y02P 80/10 (2015.11 - EP US)
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 1985869 A1 20081029; EP 1985869 A4 20111026; EP 1985869 B1 20130327; CN 101379302 A 20090304; CN 101379302 B 20120627; JP 2007211843 A 20070823; JP 4725345 B2 20110713; KR 101073531 B1 20111017; KR 20080091847 A 20081014; US 2009217656 A1 20090903; US 8051649 B2 20111108; WO 2007091534 A1 20070816
DOCDB simple family (application)
EP 07708085 A 20070206; CN 200780004701 A 20070206; JP 2006030749 A 20060208; JP 2007051967 W 20070206; KR 20087021580 A 20070206; US 27840407 A 20070206